_Fluffy_
Mechanical
- Apr 21, 2018
- 1
Hi everybody
I was asked to select/design appropriate sealing for a pneumatic jack. I looked up for handbooks and design guides, I have found good sources for designing plastic sealing including tolerances and fittings and groove sizing... but for metal rings I have found nothing comprehensive telling me which material is appropriate for each usage, how many rings should I use and other things.
Where can I get the info?
Specifically:
A (horizontal) pneumatic jack is to absorb energy, it's moving with approximate speed of 40m/s compressing air from 40bar to 70bar moving about 1 meter. The cylinder should be precharged with a (low flow) compressor to 40 bar of pressure which means the ring(s) should work statically as well as dynamically. What should I use (I have found carbon-graphite augmented materials capable of tolerating high pressure and speed but I know nothing about them (as well as appropriate shape for rings, number of them, distance between theme, tolerances ...), just saying).
I was asked to select/design appropriate sealing for a pneumatic jack. I looked up for handbooks and design guides, I have found good sources for designing plastic sealing including tolerances and fittings and groove sizing... but for metal rings I have found nothing comprehensive telling me which material is appropriate for each usage, how many rings should I use and other things.
Where can I get the info?
Specifically:
A (horizontal) pneumatic jack is to absorb energy, it's moving with approximate speed of 40m/s compressing air from 40bar to 70bar moving about 1 meter. The cylinder should be precharged with a (low flow) compressor to 40 bar of pressure which means the ring(s) should work statically as well as dynamically. What should I use (I have found carbon-graphite augmented materials capable of tolerating high pressure and speed but I know nothing about them (as well as appropriate shape for rings, number of them, distance between theme, tolerances ...), just saying).
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